The adsorption kinetics of residual phospholipids from hydrated and alkali-refined soy oil with regenerated clay was studied by measuring the concentration change of phospholipids in the oils before and after adsorption with time. Experimental results indicated that the adsorption efficiency and regeneration efficiency of the regenerated clay was 69.3% and 91.3%, respectively. The adsorption rate was found to increase upon increasing the ratio of clay/oil, agitation speed or temperature. It was also found to increase by decreasing the particle diameter of the clay. The effects of the particle diameter of the clay and the ratio of clay/oil were significant while those of agitation speed and temperature were not. The empirical rate expression for the adsorption of phospholipids has been determined as In (C) over barC(0) = -338.708exp(-4018/RT)d(-0.953)r(0.564)s(0.23t)t(0.1) C.